Inborn disorder of energy metabolism

This study tests a new type of stem cell transplant for children with primary immune deficiencies or inherited metabolic disorders. The transplant uses stem cells from a half-matched family donor, which are specially processed to remove certain immune cells. The goal is to see if…

This study tests whether injecting a person's own bone marrow stem cells into or near the eye can help treat various retinal and optic nerve diseases, including age-related macular degeneration, retinitis pigmentosa, and glaucoma. Participants receive stem cell injections via dif…

This early-stage trial is testing a new drug called DNL952 in 32 adults with late-onset Pompe disease. The main goal is to check if the drug is safe and how the body processes it. Participants will receive the drug through an IV infusion at different doses.

This early-stage study tests a new medicine called PYC-001, given as an injection into the eye, for people with a rare genetic eye disease (autosomal dominant optic atrophy) caused by a change in the OPA1 gene. The main goal is to check the safety of different doses and schedules…

This phase 3 trial tests an experimental drug called sepofarsen in 32 people with Leber congenital amaurosis (LCA), a rare genetic condition that causes severe vision loss from birth. The drug is injected into one eye, while the other eye gets a placebo, to see if it safely impro…

This study tests an experimental oral drug called S-606001 in 45 adults with late-onset Pompe disease. Participants take the drug or a placebo on top of their standard enzyme replacement therapy. The main goal is to see if the drug improves lung function and walking ability over …

This study tests whether sodium phenylbutyrate (ACER-001), a drug already approved for another condition, can help people with MCAD deficiency caused by a specific gene mutation. About 24 participants aged 4 and older will take the drug and be monitored for safety and how well it…

This Phase 3 study tests whether the drug mavorixafor can reduce serious infections and increase neutrophil levels in people with chronic neutropenia—a condition where the body doesn't make enough infection-fighting white blood cells. About 176 participants will receive either ma…

This program provides access to two experimental drugs, doxecitine and doxribtimine, for people with thymine kinase 2 deficiency (TK2d), a rare genetic disorder that can cause severe muscle weakness and early death. It is for children and adults who have a confirmed TK2 gene muta…

This study tests a bone marrow transplant from a family donor for children under 21 with severe non-cancer blood disorders like sickle cell disease, bone marrow failure, or immune problems. The goal is to see if the transplant can replace the diseased cells with healthy donor cel…

This study tests a single intravenous dose of a gene therapy called AB-1009 in 12 adults with late-onset Pompe disease. Participants must have been on enzyme replacement therapy for at least 6 months. The main goal is to check safety and side effects, while also seeing if the tre…

This study tests a gene therapy called RP-A501 in 14 males with Danon disease, a rare genetic condition that causes heart problems. The treatment uses a harmless virus to deliver a working copy of the LAMP2 gene, aiming to improve heart muscle function and reduce thickening. Part…

This study tests whether a high-quality form of coenzyme Q10, a natural substance, can help reduce symptoms and improve daily life in veterans with Gulf War illness. Researchers will compare the supplement to a placebo in 192 veterans. The goal is to see if this approach offers a…

This study tests a new drug called dorzagliatin in 44 adults with a rare, inherited form of diabetes (GCK-MODY). The drug works by activating a key enzyme to help the body better control blood sugar. Participants will receive both the drug and a placebo at different times to see …

This program provides expanded access to triheptanoin for people with long-chain fatty acid oxidation disorders (LC-FAOD) who have few treatment options and cannot join a clinical trial. The goal is to help manage the disease by providing an alternative energy source for the body…

This study tests whether a drug called glycerol phenylbutyrate (RAVICTI®) can reduce fatigue and improve daily life for people with pyruvate dehydrogenase (PDH) deficiency, a rare genetic condition that affects energy production. About 15 children and young adults (ages 2 to 25) …

This study tests a drug called avalglucosidase alfa in 13 Chinese children with infantile-onset Pompe disease, a rare genetic disorder that causes severe muscle weakness and heart problems. Participants will receive the drug through an IV every two weeks for about a year. The goa…

This study tests whether giving enzyme replacement therapy to fetuses with certain rare genetic diseases (like MPS I, Gaucher, or Pompe) before birth is safe and feasible. About 10 pregnant participants will receive the treatment through the umbilical vein. The goal is to see if …

This study follows 15 adults (ages 22–90) with severe, long-term balance disorders caused by inner ear damage. Participants have already received a vestibular implant, a device that electrically stimulates the balance nerve to help restore steadiness and clear vision during movem…

This study tests a gene therapy called GS010 for people with Leber hereditary optic neuropathy (LHON), a genetic condition that causes rapid vision loss. Researchers will give the treatment as an injection into the eye at two different doses to see if it improves vision and mitoc…

This study tests whether adding a daily probiotic tablet and a coenzyme Q10 toothpaste to standard gum cleaning can improve oral health in pregnant women. Forty pregnant women will be split into two groups: one gets the probiotic plus Q10 toothpaste, the other gets only the Q10 t…

This early study is testing a drug called triheptanoin (Dojolvi) in children with pyruvate dehydrogenase complex (PDC) deficiency, a rare genetic condition that affects energy production. The trial will enroll 6 children aged 1 to 18 and look at safety, side effects, and changes …

This phase 1 trial tests N-acetylcysteine (NAC), an antioxidant, in 18 adults with a specific mitochondrial disease caused by the m.3243A>G mutation and low brain glutathione levels. Participants take one of three daily doses (1800, 3600, or 5400 mg) for 3 months to find the safe…

This Phase 3 trial is testing a combination of two drugs—cipaglucosidase alfa (an enzyme replacement therapy) and miglustat (an oral medication)—in children with infantile-onset Pompe disease, a rare genetic disorder that weakens muscles and the heart. The study includes both chi…

This study tests a vestibular implant in 15 older adults (ages 65-90) with chronic balance issues due to bilateral vestibular hypofunction. The implant electrically stimulates the inner ear to improve balance and vision. Researchers will measure changes in gait and eye reflexes o…

This study tests a vestibular implant, a device surgically placed in the inner ear to electrically stimulate balance nerves. It aims to improve balance, posture, and vision in up to 8 adults with bilateral vestibular hypofunction, a condition causing chronic dizziness and instabi…

This study looks at whether the diabetes drug pioglitazone can improve how the liver processes energy in people with nonalcoholic fatty liver disease (NAFLD) and type 2 diabetes. Researchers will measure liver mitochondrial function using special tracers before and after 16 weeks…

This study looks at whether adding CoQ10 (a supplement that supports cell energy) to high-intensity interval training can help people with end-stage kidney disease build muscle and improve physical function. 156 adults on dialysis will be assigned to exercise alone or exercise pl…

This study tests a new drug called ION283 in 10 people aged 10 to 18 with Lafora disease, a rare and severe form of epilepsy. The drug is given via a spinal injection to see if it is safe and can help control seizures and other symptoms. All participants will receive the same dos…

This study tests a new gene therapy called BEAM-301 in 36 adults with glycogen storage disease type Ia (GSDIa) who have a specific gene change. The goal is to see if a single dose can safely improve blood sugar control and reduce the need for cornstarch supplements. Participants …

This study tests liraglutide, a drug used for type 2 diabetes, in 50 adults with MODY, a rare genetic form of diabetes. The goal is to see if it improves blood sugar control and reduces stomach issues like nausea. Researchers will also study participants' cells to understand why …

This program offers extra stem cells from a half-matched family donor to patients who are getting a cord blood transplant for serious blood cancers or immune disorders. The goal is to help the bone marrow recover more quickly while the cord blood cells take over permanently. It i…

This expanded access program provides ATB200/AT2221 to people with Pompe disease who cannot join ongoing clinical trials or choose not to use standard therapy. The treatment combines an enzyme replacement therapy with a chaperone drug to help break down glycogen buildup. Particip…

This expanded access program offers a new treatment combination (ATB200 and AT2221) to children with infantile-onset Pompe disease who are not eligible for other clinical trials and are declining on standard enzyme replacement therapy. The goal is to provide access to this experi…

This study tests an oral drug called TTI-0102 in 12 people with MELAS, a rare genetic disorder that causes muscle weakness, strokes, and fatigue. Participants receive either the drug or a placebo for 6 months. Researchers will measure walking ability, fatigue, and quality of life…

This study aims to see if a home lactate meter and a standard glucose meter give accurate readings compared to lab tests in people with glycogen storage disease types Ia, Ib, and XI. Ten participants will have an 8-hour hospital stay with hourly blood draws and finger-stick tests…

This study is testing whether a non-invasive brain imaging technique called fNIRS can reliably measure brain function in people with Fragile X syndrome or Creatine Transporter Deficiency. Researchers will use a cartoon-based visual stimulus to record brain activity and compare it…

This study is testing a small device called a nanosensor that measures oxygen levels in muscle tissue. The goal is to see if it can accurately assess mitochondrial function in people with mitochondrial myopathy compared to healthy volunteers. If it works, this sensor could become…

This early-stage study tests a small nanosensor placed under the skin in the forearm to measure oxygen levels in muscle, which reflects how well mitochondria are working. Researchers will compare results from 24 people—some with mitochondrial myopathy and some healthy—to see if t…

This study tests whether the drug sonlicromanol can reduce fatigue and improve physical abilities like balance and leg strength in adults with a specific genetic form of mitochondrial disease. About 220 participants will take either the drug or a placebo twice daily for 52 weeks.…

This study tests whether a personalized mix of endurance and strength exercises, done at home with video check-ins, can improve mobility and muscle strength in people with mitochondrial myopathy. Fifteen adults with confirmed genetic mutations will follow the program for up to 12…

This study tests whether taking L-carnitine, a natural substance that helps turn fat into energy, can improve symptoms and quality of life in people with heart failure and kidney problems. About 20 adults will take the supplement for a short time while researchers monitor side ef…

This study looks at whether a ketone ester supplement can improve heart function and exercise ability in people with type 2 diabetes. About 30 adults will take either the supplement or a placebo and undergo heart scans and fitness tests. The goal is to see if this simple drink ca…

This study tests whether whole-body electrical muscle stimulation (WB-EMS) can help adults with neuromuscular diseases like ALS, SMA, and muscular dystrophy exercise safely. Because these conditions weaken the nerves that control muscles, traditional exercise is often too hard. W…

This study tests a 12-week supervised rehabilitation program for people with two rare genetic conditions that cause walking and balance problems (spastic ataxias). The program includes twice-weekly therapy sessions and once-weekly pool exercises. Researchers want to see if it red…

This study tests a virtual behavioral therapy (Functional Behavioral Training) for children aged 2-12 with genetic syndromes like Fragile X, Angelman, or Rett syndrome who have challenging behaviors. The therapy teaches parents how to identify what triggers problem behaviors and …

This study tests a virtual peer support program for people with type 1 diabetes and their loved ones across Canada. Participants join small online meetings and larger webinars to share experiences and reduce diabetes distress. The program is designed by researchers who also live …

This study aims to better understand and treat people with certain inherited metabolic or genetic disorders. Researchers will use standard medical tests like blood work and imaging to diagnose and care for participants, who may also join other related studies. The goal is to expa…

This study at the National Institutes of Health looks at how infections can worsen symptoms in people with mitochondrial disease, a group of disorders that affect energy production in cells. Researchers will evaluate participants' immune systems through blood tests, physical exam…

This study aims to learn more about rare inherited disorders that affect the brain, spinal cord, muscles, and nerves. Researchers will collect medical history, perform exams, and run genetic tests on up to 3,500 participants. No new treatments are tested; the goal is to better un…

This study looks at children with suspected or confirmed genetic and metabolic disorders to find new disease-causing gene mutations. Researchers will analyze blood samples for DNA and metabolites, and in some cases take a small skin sample. The goal is to better understand these …

This study at Necker Hospital in Paris is checking how well patients with inherited metabolic diseases follow their daily oral medication routines. About 200 patients (children aged 7 and up, teens, and adults) will fill out a questionnaire during a regular visit. The goal is to …

This study enrolls up to 15,000 children with known or suspected endocrine or metabolic disorders, along with their family members. Researchers will collect medical records, blood, saliva, and other samples to identify genetic changes linked to these conditions. The goal is to be…

This study is creating a large collection of blood, urine, stool, and heart tissue samples from 10,000 people with and without heart or metabolic conditions. The goal is to store these samples along with medical information to speed up future research into what causes these disea…

This global registry enrolls people with Pompe disease to track how the condition changes over time, whether they receive treatment or not. By collecting data from up to 2,000 participants, researchers hope to better understand the disease's progression and improve patient care. …

This study aims to better understand how Pompe disease affects the nerves and muscles involved in breathing. Researchers will analyze nerve conduction and diaphragm activity in 20 adults with Pompe disease or unexplained respiratory failure. The goal is to identify patterns that …

This study follows 400 people with mitochondrial disease and their household members to learn how infections affect them. Researchers will analyze blood samples and health records to find immune patterns linked to severe illness. The goal is to improve care and identify potential…

This observational study looks at whether taking raw cornstarch with meals helps control blood sugar in adults with glycogen storage disease type I (GSD I). Eight participants will wear continuous glucose monitors and keep food diaries for two weeks. Researchers will compare bloo…

This study looks at facial features of males aged 2 to 40 with creatine transporter deficiency (CTD), a genetic disorder that causes intellectual disability, seizures, and behavioral issues. Researchers will examine photos of participants to see if they share common facial traits…

This study gathers medical information from people with MNGIE, a rare genetic disease that affects the nerves and digestive system. Researchers want to learn how the disease progresses and find better ways to measure it. Up to 50 patients worldwide can join, and no new treatments…

This study tests a new communication tool called 'Let's Get REAL' that helps children and teens (ages 8-17) and their families talk together about stem cell transplant or cellular therapy decisions. The goal is to see if the tool is easy to use and helpful for families. About 60 …

This observational study follows people with Glycogen Storage Disease Type Ia who have already received the gene therapy DTX401. The goal is to track their health and safety for at least 10 years after treatment. No new drugs or treatments are given in this study. It will help re…

This study looks at people with creatine transporter deficiency, a rare genetic condition that causes intellectual disability, seizures, and movement problems. Researchers want to find the best tests to measure symptoms, since many standard tests are too hard for these patients. …

This study looks at how a supplement called nicotinamide riboside (NR) and a low-carb, high-fat 'ketogenic' diet affect the way the body burns fat and uses energy. Researchers will measure changes in metabolism in 100 overweight or obese adults. Participants will eat a standard d…

This registry collects information from people with inherited retinal diseases, like retinitis pigmentosa and Stargardt disease. Participants share their symptoms, family history, and genetic test results online. The goal is to help researchers understand these rare diseases and …

This study looks at whether adults with glycogen storage disease type I (GSDI) can safely include more fructose and galactose in their diet. Currently, patients must avoid these sugars, which limits food choices. Researchers will give 20 adults either fructose alone or fructose p…

This study gathers medical information from 200 people with glycogen branching enzyme deficiency, known as GSD IV or APBD. The goal is to learn how these rare diseases progress over time. No new treatments are tested; instead, researchers review clinic records to better understan…

This study is collecting medical information from 400 people with Glycogen Storage Disease Type VI or Type IX to learn how these rare liver conditions progress over time. Researchers will review patient records from clinic visits to track disease changes, genetic types, and lab r…

This study follows 60 people with Danon disease, a rare genetic heart condition, to learn how it progresses over time. Researchers will monitor heart function and symptoms in males aged 8 and older and females aged 8 to 50. The goal is to gather natural history data that could su…

This study looks at whether measuring telomeres—parts of our cells linked to aging—can help explain why some women still can't get pregnant even after fertility treatments. Fifteen women aged 25 to 42 will get blood tests to check their biological age, then receive a personalized…

This study looks at whether brain wave tests (EEG) done before and after heart surgery in babies under 1 year old can predict later learning or behavior problems, such as autism or ADHD. About 50 infants will be followed to age 2. The goal is to find early warning signs so that c…

This study looks at how the body's cells use oxygen in people with long COVID compared to those fully recovered. Researchers will measure oxygen use in blood cells, skin, and muscle to see if there are differences. The goal is to better understand long COVID and test if these mea…

This study aims to find biological markers in the blood that may help explain brain development disorders like autism, epilepsy, and brain tumors. Researchers will compare children with and without these conditions to identify unique patterns. Up to 500 children will participate …

This study follows 500 adults (400 with mitochondrial disease and 100 healthy or other-disease controls) for up to 10 years. Researchers collect medical data and samples to create a biobank, aiming to better understand how the disease progresses and to find ways to diagnose it ea…

This study looks at medical records of 1000 children with conditions like autism, epilepsy, and Down syndrome to find common biological patterns. Researchers want to understand what causes these disorders and how children respond to treatments. The goal is to improve diagnosis an…

This study follows pregnant women with Pompe disease to see how the condition and its treatments affect pregnancy and infant growth. Researchers will track complications and monitor babies for up to three years after birth. No new drugs are being tested; participants receive thei…

This study aims to find genetic mutations that cause spontaneous coronary artery dissection (SCAD), a condition where arteries in the heart tear without warning. Researchers will analyze DNA from 2000 people diagnosed with SCAD, as well as their relatives. The goal is to identify…

This study collects information from up to 250 patients with lysosomal storage diseases (like certain forms of MPS, Pompe, Gaucher, and Wolman disease) to understand how these conditions develop and respond to treatments given before birth. Researchers will track symptoms, lab re…

This study follows up to 400 children with Pompe disease to see how their immune system reacts to enzyme replacement therapy. Researchers will collect medical records from birth to age 18 to understand which children develop antibodies that block treatment. The goal is to improve…

This study is creating a large digital registry to find and understand rare forms of diabetes caused by a single gene (monogenic diabetes). Researchers will enroll up to 5,000 people in China who were diagnosed with diabetes at a young age and test their DNA. The goal is to learn…

This study follows 36 people with type 1 diabetes who have received a pancreatic islet transplant. Researchers will use continuous glucose monitors to see if a measure called 'Time in Tight Range' can detect early loss of graft function. The goal is to find a simple way to spot p…

This study takes a small sample of skin, blood, or urine from people with diabetes and healthy volunteers. Scientists will turn those cells into stem cells and then into insulin-producing cells in the lab. The goal is to learn more about diabetes and pave the way for future cell-…

This study is a global registry that will follow about 500 people with Pompe disease over time. It includes both treated and untreated patients, and aims to collect real-world data on treatment safety, effectiveness, and quality of life. No new treatments are being tested—this is…

This study looks at how medium-chain and long-chain fatty acids affect metabolism in people with Medium-Chain Acyl-CoA Dehydrogenase Deficiency (MCADD) and healthy individuals. Researchers will measure ketone bodies, resting metabolic rate, and other factors after participants co…

This study aims to learn how Pompe disease affects the brain and nerves over the long term. Researchers will use brain scans, thinking and language tests, and muscle checks in 45 people with Pompe disease. Participants will be followed for 3 to 6 years. No new treatment is being …

This study looks at whether portable lactate monitors (like those used at home) give accurate results for people with glycogen storage disease type Ia. Ten participants will have their lactate and glucose levels measured by finger-stick and by standard lab tests. The goal is to s…

This study looks at how exercise training changes muscle cells in people with mitochondrial myopathy, a rare disease that affects energy production. Researchers will compare a trained leg to an untrained leg in the same person, and also compare results with healthy volunteers. Th…

This study looks at why diabetes can damage the heart even without clogged arteries. Researchers will examine heart tissue and use advanced imaging in 500 adults with heart failure, with or without type 2 diabetes. The goal is to find early warning signs and new treatment targets…

This study is collecting information from children and adults with pyruvate dehydrogenase complex deficiency (PDCD), a rare genetic disorder that affects energy production in cells. Researchers will review medical records, ask participants about their health history, and perform …

This study tests whether a wrist-worn device can help monitor pregnant women with congenital heart disease. Researchers will track heart rhythms and other data from 50 participants to see if the wearable can detect early signs of trouble. The goal is to improve care and reduce th…

This study uses MRI scans to look for brain differences in people with metabolic diseases compared to healthy volunteers. Researchers will track changes over time and link them to body fat and other health measures. About 126 adults will take part at Ulm University Hospital. No d…

This study looks at how mitochondrial diseases might weaken the immune system. Researchers will collect blood samples from 60 people with confirmed mitochondrial disorders and compare their immune cells and antibodies to healthy controls. The goal is to better understand these im…

This study is creating a large registry and tissue bank for people with mitochondrial disorders. Researchers will collect medical information and samples from up to 1,000 participants, including those diagnosed with or suspected to have a mitochondrial disease. The goal is to gat…

This study looks at how kidney and bladder cancers use nutrients like sugar and fat to grow. Participants receive a harmless nutrient tracer during surgery or biopsy, and researchers collect blood and tissue samples to analyze cancer metabolism. The study does not change standard…

This study is creating a large registry of people who have had a spontaneous coronary artery dissection (SCAD), a type of heart attack. Researchers will collect medical history and follow participants over time to learn more about risk factors, treatments, and long-term outcomes.…

This study follows 300 people who carry a specific mitochondrial DNA mutation (m.3243A>G) that can cause symptoms like migraines, seizures, and hearing loss. Researchers will use brain scans, muscle tests, and cognitive assessments to track how the disease progresses over time. N…

This study tests whether a ketone supplement can improve how the body uses insulin and burns energy. Ten overweight adults aged 55-70 will receive different combinations of growth hormone, a ketone drink, or placebos on separate days. Using advanced PET scans and tissue samples, …

This study is testing advanced heart MRI scans to better diagnose and predict risks for people with rare heart muscle diseases. Researchers will scan 1000 participants to see if these new imaging methods can identify conditions like Fabry disease and cardiac amyloidosis more accu…

This study collects DNA from up to 1,000 adults with progressive supranuclear palsy (PSP), corticobasal syndrome (CBS), multiple system atrophy (MSA), or related conditions, plus their family members. Researchers will sequence participants' whole genomes to find genetic variants …

This study gathers safety information from about 100 women with Pompe disease who received Nexviazyme while pregnant or breastfeeding, and from their babies. Researchers will track pregnancy complications, birth outcomes, and infant growth and development through the first year o…

This study is following 300 people in Norway who have had a spontaneous coronary artery dissection (SCAD), a rare cause of heart attacks, especially in women. Researchers will use scans, blood tests, and questionnaires to track their health for one year. The goal is to better und…

This study tracks 200 people with ultra-rare glycogen storage diseases (GSDs) like types 0a, 0b, VII, X, XII, XIII, XV, PRKAG2 syndrome, and Danon disease. Researchers will collect medical records and other data to see how these conditions progress over time. No treatments or dru…

This study looks at using liver elastography, a non-invasive ultrasound-like technique, to measure liver fibrosis in children with type III glycogen storage disease (GSDIII). The goal is to see if this method can replace painful liver biopsies for monitoring disease progression. …

This early-phase study looks at whether reducing high insulin levels (common in type 1 diabetes) with an SGLT2 inhibitor can improve heart and blood sugar health. Researchers will compare people with type 1 diabetes, those with a mild genetic diabetes (GCK-MODY), and healthy volu…

This study looks at whether adding certain nutrients to blood cells from people with septic shock can help restore the cells' energy-making machinery (mitochondria). Researchers will collect blood samples from 55 patients in the ICU and test these nutrients in the lab. The goal i…

This study aims to learn how the binding of RNA with DNA (called R-loops) is linked to amyotrophic lateral sclerosis type 4 (ALS4) and other inherited neurological disorders. Researchers will observe up to 330 people aged 5 and older, including those with ALS4, related conditions…

This study is testing a new non-invasive device that uses laser speckle to measure blood flow and structure inside the eye. Researchers will compare these images with standard vision tests in 500 people with various retinal conditions. The goal is to see if this technology can be…

This study looks at how often young children (ages 1 to 6) with inherited metabolic diseases develop eating disorders when they are on special diets. Researchers will use a feeding scale to measure eating problems in 200 children. The goal is to understand the link between these …

This 24-month observational study will follow up to 1000 people with certain types of muscular dystrophy (LGMD, DM2, and late-onset Pompe disease) aged 6-50. Researchers want to see if specific physical tests, like the North Star Assessment and a 100-meter walk, are good ways to …

This study looks at people who carry genetic changes linked to Leber Hereditary Optic Neuropathy (LHON) but still have normal vision. Researchers want to see if certain chemicals in the blood and tears can signal early nerve damage in the eye, before vision loss occurs. The goal …

This study looks at whether a special bed that gently moves your legs (passive exercise) can improve how the body uses oxygen in people with mitochondrial disease. Researchers will compare patients to healthy volunteers and also test the bed in children in the ICU. The goal is to…

This study collects medical information and biological samples (like blood or tissue) from up to 12,000 people with leukodystrophies—rare disorders that damage the brain's white matter. Researchers will use this data to find new genetic causes, develop biomarkers for future trial…

The SMILE study is tracking 10,000 adults aged 18 and older to see how sarcopenia (age-related muscle loss) and metabolic diseases like diabetes influence overall health and lifespan. Researchers will collect data from medical records, tests, and surveys over time. This is an obs…

This study follows 150 people with primary mitochondrial myopathy, a rare genetic muscle disease, to understand how the condition changes over time. Researchers will measure muscle function, biomarkers, and imaging to find signs of disease progression. The goal is to identify use…

This observational study aims to better understand primary mitochondrial myopathy, a rare muscle disease. Researchers will follow 1300 patients and healthy controls, measuring muscle strength, balance, and daily function over time. The goal is to develop and validate tools to tra…

This study aims to learn more about rare disorders that affect how the body processes chemicals called pyrimidines and purines. These disorders can cause problems in the brain, blood, kidneys, and immune system, ranging from mild to life-threatening. Researchers will compare test…

This study follows 100 children under 18 who are already on a ketogenic diet for conditions like drug-resistant epilepsy, autism, chronic migraine, or brain tumors. Researchers want to see if the diet supports healthy growth, improves symptoms, and boosts quality of life. The die…